Wire-bound-box-blank machine.



F.1.GRUNINIE.

WIRE BOUND BOX BLANK MACHINE.

APPLICATION FILED AUG.8, 1913. RENEWED MAY 31.1917.

Patented Jan. 15, 1918.

4 SHBETS'SHEET I.

NAA@ s F. J. GRUMVIE.

WIRE BOUND BOX BLANK MACHINE.

APPLICATION FILED AUG-8. i913.

RENEWED MAY`31. |917.

Patented J an. 15 1918.

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@Hom/w13 F. I. GRU-MME'.

WIRE BOUND BOX BLANK MACHINE. APPLICATION FILED AUG.8. 1913. RENEWED MAY3VI. 19H.

-1I253,962. Patented 53.1.15,1918.

4 SHEETS-.SHEET 4.

v W/T/I/ESSES, l ...5W/f Q' K4 M /WW m9 FREDERICK J. GRUMME, OFINDIANAPOLIS, INDIANA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO C. FREDYEGGE, TRUSTEE, OF EVANSTON, ILLINOIS.

WIRE-BOUND-BOX-BLANK MACHINE.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application filed August 8, 1913, Serial No. 783,725. Renewed May 31,1917. Serial No. 172,075.

To all whom it may concern:

Be it known that I, FREDERICK J. GRUMME, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented a new and useful `Wire-Bound-BoX-Blank Machine, of whichthe following is a specification.

The object of my invention is to produce a machine by means of which boxblanks, composed of cleats and sheet material, may be associated in suchmanner that the same may be folded to form the sides of a boX.

The accompanying drawings illustrate my invention as incorporated in amachine especially designed for the production of wire bound boX blankswherein the several sections of each box blank are connected andstrengthened by binding wires, Figure 1 being a plan with the usualstaple-forming and driving mechanism omitted; Fig. 2 a vertical sectionon the line 2-2 of Fig. 1; Fig. 3 a fragmentary vertical section showingthe sheet gaging and feeding mechanism; Fig. 4 a fragmentary detail ofthe right-hand end of the structure shown in Fig. 3; Fig. 5 a section,on a larger scale, on line 5 5 of Fig. 1; Fig. 6 a fragmentary plan ofthe cleat interrupter and spacer; Fig. 7 a section on line 7-7 of Fig.6; Fig. 8 a section, on line 8 8 of Fig. 1; Fig. 9 Van elevation ofanother form of mechanism for withdrawing the cleat-interrupter; andFig. 10 a detail of the parts shown in Fig. 9.

1n the drawings, 10 indicates the main frame of a machine provided withthe usual anvil bar 11, stapling. mechanism 12 arranged above the anvilbar, and cleat guides 13, 13 arranged to deliver a, succession of cleatsto the stapling plane and each provided with a friction-driven feedchain 14 adapted to yieldingly deliver cleats 15 through the cleatguides to the interrupter 16 which operates upon each cleat insuccession to temporarily detain it to permit the insertion between theforward end of the oncoming cleat and the rear end of the precedingcleat, of a cleat-spacing member 17, the preceding cleatsbeing under thecontrol of the spaced-cleat feeder chains 18 which last-mentioned chainsare given stepby-step advancement by means of the ratchet mechanism 19and connecting gear train 2O connecting said ratchet mechanism with thefeed chains in a manner so well known to the art as to need no furtherillustration.

rl`hus far the mechanism which 1 have described is common and wellknown, being illustrated more fully in Patent No. 985,996, issued March7, 1911, to Jason H. Greenstreet. In the operation of the mechanism justdescribed, the spacing members 17 are moved into the space betweencleats by the action of the pin 25 upon the cam face 26 of the spacerfingers 17 and said spacers are automatically withdrawn from between thecleats, after the rearward cleat has passed under the control of thecleat feeder 18, by the action of the cam face 27 upon the pin or stop28, and in the present form of machine these cleat spacers 17 arecarried by a cross bar 29 supported by cross hea-ds 31 upon thelongitudinal guide bars 32 so that the cross bar 29 has a limited playlengthwise of the machine.

Arranged in frame 10 is a rock shaft 33 provided with a pair of upwardlyextending arms 34, 35 each of which is connected by a pin and slotconnection 136 with the cross bar 29. Attached to the arm 34 is a cord137 which is passed over an idler 138 and provided at its lower end witha. weight 139 which normally tends to keep the cross bar 29 in itsposition closest to the stapling plane. The arm 35 is provided with arearward extension 36 adapted to intermittently engageV with the lowerend of a pawl 37 which is carried by a stem 37 vertically reciprocablethrough a pivoted bracket 39 and normally held in its upper position bya spring 40. Connecting arm 35 with the lower end of pawl 37 is a spring41 the pull of which normally withdraws the shoulder 42 of pawl 37 fromthe path of movement 0f the teeth of a constantly rotating ratchet wheel43 which is freely rotatable upon the rack shaft 44, the ratchet wheelbeing carried by a sprocket wheel 45 driven by a chain 46 connecting itthrough sprocket wheel 47 with a constantly rotating shaft 48. Rockshaft 44 carries a radially projecting arm 49 which lies within the pathof movement'of a linger 50 carried by the pawl 37. Shaft 44 also carriesarms 51 to which are connected springs 52 which serve to normally holdthe parts in the position shown in Fig. 7. Connected to arms 51 arelinks 53 which in turn are connected to arms 54 carried by rock shaftswhich are .provided at their upper ends with arms 56 adapted to engagethe interrupter 16 and intermittently retractit from cleat-interruptingposition,

Normally, shoulder 42 of `pawl '37 lies out lof the l-path. of movementof the constantly moving ratchet wheel 43 but as Soon as bar "29 returnsto the position shown in Figs. 1

and 8 the bracket 36 of arm engages pawl 37 so as to move shoulder 42into the path of movement of ratchet 43 whereupon said ratchet serves todrive the pawl 37 quickly downwardly. This downward movement of the pawl37 brings itsl finger 50 into engagement with arm 49 of shaft 44,thereby producing a short rocking movement of shaft 44 and, through itsarms 51 and links 53 operating upon arms 54 of shafts 55 and causing thearms 56 thereof to engage the cleat interrupters 16 and withdraw themfrom in front of the oncoming cleats.

It is desirable immediately following the production of a completeblank, to interrupt the flow of cleats for the next blank just beforethe cleats pass into the control of the positive cleat feeder 18 and forthat purpose I provide a stop 60 which is automatically intermittentlymoved into the path of movement of a finger 61 carried by the cross bar29. In the production of a four-sided box blank, this operation occursonce in the flow of each four cleats. Stop 60 is carried by a swingingarm 62 provided with a gin 68 lying in a cam groove 64 in a rotating cam65, which cam is provided with a series of pins 66 (four in the presentinstance) arranged to be engaged by a pawl 67 carried by cross bar 29.The main portion of cam groove 64 is such as to normally hold stop 60out of the path of movement of stop 61 but at one point, as clearlyshown in F 1, this cani groove is formed so as to produce a swing of arm62 so as to bring stop 60 into the path of movement of stopv 61.

Thus far the 1nachine,while didering in some minor details from theGreenstreet machine to which I have already referred, is, nevertheless,substantially the same as that machine,an d my invention relates moreparticularlyto the apparatus which I shall now describe.

Supported upon the anvil bar 11 are guides 7 0 each of which is providedwithy a run-way 71 in which is mounted a switch arm 72. The run-way 71is formed 'to receive pin 73 carried by a swinging arm 74 pivoted at 75upon a bracket 76 mounted uponcross bar 29 and longitudinally adjustablethereon, the arm 74 being normally held in its upper position, 'as shownin Fig. 3, by a spring ,77, Each arm 74 carries a sheet gage 78 againstwhich the forward edge of thesheet material 7 9 may be placed and eacharmalsocarries at its rear end an adjustable block 80 which may beadjusted toward and from gage 78, and carries vertically swinging pawls81 adapted to engage the rear edge of the sheet 79 but arranged to passfreely beneath the sheet on the return or rearward movement of army 74.Projecting rearwardly from each guide 7 0V is a sheet supporting finger82.

By this arrangement the sheet material is. positively fed through the.machine 'inv synchronism with the cleats, the movement of this sheetfeeding and gaging mechanism being dependent upon the movement of thecross bar 29 which is moved forwardly by the action of the spaced cleatsupon the cleat spacer 17 andas the end of this sheet. feeding movementis neared, and after the first staple has been driven through theoncomingsheetA into the cleat beneath, pin 73 reaches the cam surface 71of the cam slot 70 and passes beyond and beneath switch 72 whereupon,the switch being returned by a spring 72, pin 78 in its return movementpasses.

beneath switch 72 until the rearv end of the stroke is reached, thusdepressing the rearend of arm 74 and keepingthe pawl 81 and gage 78 fromdragging upon the under side of the sheet material.

In the operation of machines of this type, y

there is at times someV diiiiculty in the return movement of the cleatspacer 17 and for that purpose I arrange, adjacentV the path of movementof such cleat spacer, a springurged presser arm 91 which is pivoted at92 on the main frame and serves to insure the proper projection of thecleat spacer between the separated cleats, as shown in Fig. 2.

In order that the arm 62 may be locked in its abnormal position for arequired length of time, so as to, give proper spacing between blanks, Imount upon the under side of said arm 62 pawl 93 which is adapted to beengaged by a catch 94 when arm 62 thrown to its abnormal position. Inorder to withdraw catch 94 at the proper time, said catch is connectedby a link 95 with a lever 96 which is normally urged toward retractingposition by a spring 97. Lever 96 is connected toa vertically moving cambar 98 which is projected upwardly into the bottom of one of the cleatguides justbeyond the stapling plane, the rear face of the projectingend being beveled, as indicated at 99, so that. the forwardly moving`cleats may pass freely over the upper end of the cam bar, depressing itbelow the cleat guide. By this arrangement, whenever the last cleat of aseries passes beyond the cam ba198, vit will be permitted to rise, andwill thus withdraw,

catch 94 from engagement with catch 93, and thus permit arm 62 to returntoits normal position and withdraw stop 60 from the f path of movementof stop 61 and thereby permit a resumption of flow of the cleats throughthe machine.

l/Vith the construction shown in Fig. 2, for returning the arms 34 and35 to their rearward position by the weight 139, some difficulty hasbeen found, owing to the jar of the weight, and it has not been foundfeasible to directly operate the withdrawing means for the cleatinterrupters by this return movement and it is for that reason that theconstruction shown in Fig. 7 is provided. I have found, however, that bythe construction shown in Fig. 9, it is possible to directly operate thcwithdrawing means for the cleat interrupters by mechanism which isdirectly connected with the returning mechanism lfor the cross bar 29,this apparatus being also of such character as to effect a Variable pullupon the cross bar at different points in its movement and thus do awaywith the jar incident to the use of a weight of sufficient size toaccomplish desired results.

In this construction, I provide the shaft 170, which is a constantlyrotating shaft acting by friction elements 171 upon the sprocket wheels172 which carry the preliminary feed chains 14. Upon this constantlymoving shaft 170 I mount a gear 176 which meshes with a gear 175 mountedupon a stud shaft 177. Gear 17 5 carries a friction element 178 whichfrictionally engages an oscillating disk 179 journaled on the stud shaft177 and carrying a drum 180 of smaller diameter. Extending radially fromthe periphery of this drum within disk 179 is a slot 181 within which isslidably mounted a pin 182. Secured to this pin is a flexible link orthong 183, the opposite end of which is attached to one of the arms 34or 35. The disk 17 9 at one point is provided with a pin 184 upon whichrides an arm 185 carried by the 'rock shaft 44, said rock shaft carryingonly the arms 51 and links 53 which connect with the levers 54.

By this arrangement the pin 182 lies close to the circumference of drum180 when the parts are in the position shown in full lines, and at thistime the arms 34 and 35 are in the position shown in Fig. 2, the crossbar 29 being at the rear end of its stroke; z'. e., nearest the staplingplane. When the cross bar 29 is driven forwardly in the machine, by theaction of the cleats on the cleatspacers 17, the disk 179 will bedragged back against the action of its friction driving means to theposition indicated in dotted lines in Fig. 9, this movement dragging pin182 to the outer end of slot 181 where the effect of the friction driveupon the disk is the least upon the arms 34, 35. As soon as the cleatspacers 17 have been drawn out from between the cleats by the action ofthe cam 28, the friction action of the element 178 upon disk 17 9returns it to its initial vposition (moving in a clockwise direction inFig. 9) and as the movement of this disk nears its end, there will be aslip of pin 182 inwardly in slot 181 so as to thus increase the drivingeffect of the friction element 178 upon the arms 34, 35, andconsequently increase the driving force upon the cross bar 29, therebygiving greater force, although acting at a. slower speed, upon the cleatspacers 17 to drive them against pins 25 and force the cleat spacersinto the cleat guides in front of the interrupted cleat. Just as thisfinal movement of the disk 17 9 takes place, pin 184 engages the upperend of a slot formed in arm 185 so as to permit a rocking of shaft 44and a consequent operationv of the cams 56 to withdraw the interrupters16. It will be seen that by this arrangement the speed of return of thecross bar 29, close to the end of the return movement, is lessened, asdistinguished from the greater speed produced by the falling weight inthe structure shown in Fig. 2, and consequently byY this arrangement Iavoid the jar which is incident to the operation of the weight.

I claim as my invention:

l. The combination, with a cleat guide, stapling mechanism, and meansfor feeding cleats through the guide across the stapling plane, of asheet-driving member independent of the cleat-feeding means andreciprocable longitudinally relativelytothe cleat movement, and meansfor shifting said sheet-driving member into and out of the plane ofmovement of sheet material associated with cleats in the cleat guide.

2. The combination, with a cleat guide, stapling mechanism, and meansfor feeding cleats through the guide across the stapling plane, of acleat-engaging member associated with the .cleat-guide, a reciprocatingcarrier for said cleat-engaging member, a sheetdriving member carried bysaid carrier, and means operatin on said sheet-driving member to shiftit into and out of the plane of movement of sheet material associatedwith cleats in the cleat guide.

3. The combination, with a cleat guide, stapling` mechanism, and meansfor feeding cleats through the guide across the stapling plane, of aPreliminary cleat feeder preceding the main cleat feeder, an interrupterarranged to successively engage the cleats prior to engagement by themain cleat feeder, a cleat spacer movable into the cleat guide in frontof an interrupted cleat and withdrawable from the cleat guide beyond theinitial end of the main cleat feeder, a carrier for said cleat spacer, asheet-driving member carried by said carrier, and means cleats throughthe guide across the stapling plane, of a preliminary cleat feederpreceding the main cleat feeder, aninterrupter arranged to successivelyengage the cleats prior to engagement by the main cleat feeder, a cleatspacer movable into the cleat guide in front of an interrupted cleat andwithdrawable from the cleat .guide beyond the vinitial-end of the maincleat feeder, a carrier for saidv cleat spacer, a rearwardly projecting'arm pivoted on said carrier, a sheet-driving member carried by saidarm, and a cam arranged to operate on said arm during its reciprocationVby the carrier to shift the sheet-driving member into and out of theplane of the sheet. Y

5; vThe combination of a reciprocating element, a rotary element, anoscillating element associated with the rotary element, a frictionaldriving connection between the rotary element and the oscillatingelement, a radial guide carried by the oscillating clement, a pinslidably mounted in said guida-and a connecting link between said pinand the reciprocating element.

6. Ihe combination with a cleat guide, stapling mechanism, and means'for feeding cleats through the guide across the stapling plane, of acleat spacer arranged adjacent the guide and movable into the cleatguide behind a cleat, of a carrier for said cleat spacer, a rotaryfrictional driving element, an oscillating member frictionally engagedby said driving element, an inclined guide carried by said oscillatingmember, a. pin mounted in said guide and movable therein toward and fromvthe centerof oscillation, and a connectionv between said -pin and thecleat-SpaCer-carrier.

7. `The combination with a cleat guide, stapling mechanism, and. meansfor f feeding cleats through `the guide across the stapling plane, of acleat spacer arranged adjacent the guide and movable into the cleatguide said interrupter from the cleat guide, saidV means comprising amember carried by the oscillating member, and a connector engaging' saidlast mentionedmember.

8. The combination with a cleat guide, stapling mechanism, and means forfeeding cleats through the guide across the stapling plane, of a cleatspacer arranged adjacent thev guide and movable into the cleat guidebehind a cleat, ya reciprocating carrier for said cleat spacer, andmeans for returning said carriery in a direction opposite'to. itsmovement produced by the movingfcleats, said means comprising a motormember the effect `ofwhich upon the carrier decreases the speed of thecarrier as it nears its eX- treme return position.

In witness whereof, I have hereunto set my hand at Indianapolis,Indiana, this 31st day of July, A. D. one thousandV nine hundred andthirteen.

Y FREDERICK J. GRUMME. lVitnesses:

ARTHUR W. Hoon, FRANK A. FAI-ILE.

Copies' of lthis: patent may be obtained for ve cents each, byaddressing the Commissioner of Patents, Washingtom 13.0.

